Monitoring the quality of prestack broadband seismic data

Reservoir characterization methods require seismic data processed for this purpose. We propose a QC methodology for AVO and low frequency. We use a small set of attributes with which we identify signal preservation and pre-stack data consistency across the full data bandwidth. The methodology is demonstrated on two examples. In a first example, we outline the QCs necessary to monitor pre-stack data continuity, AVO model quality and wavelet stability. In a second example, we show that looking at correlation between angle stacks at low frequency is a good indicator of the low frequency quality of the data.